The Alaska-Yukon-Pacific Exposition (AYPE) was held in 1909 in Seattle,
Washington, USA.

Two flags were apparently used, the red-white-blue one
being the official flag and the gold-blue one the official burgee. It appears
the red-white-blue flag was hoisted throughout the expo grounds and the burgee
was hoisted on ships and other vehicles traveling to and from the expo and
inside the expo on its own ways.Dave Martucci, 7 July 2010

http://www.historylink.org/db_images/ayp03.JPG
(image credits are: "The A-Y-P Exposition's official symbol was an art
nouveau variation on a classical tableau: the three graces. Seattle's graces
represent the directions of her ambition: East, West, and North")

http://www.historylink.org/db_images/ayp04.JPG (image credits are: "At
the center, the North cups a pile of golden nuggets in her hands. To her
right side, the Asian East holds a trans-Pacific steamer. To her left, the
Occidental West holds a railroad engine")

The emblem is round like a seal and it features three women representing
Alaska, the Yukon, and Asia dressed in appropriate clothing and each appearing
in front of a typical scene; Asia and Yukon have appropriate trees and Alaska
has a mountain behind which is a golden sunrise. Each holds an item, a ship,
locomotive, and a lump of gold, respectively.Dave Martucci, 7 July 2010